﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Statistics
{
    public class FileSizeFormat
    {
        private static readonly long kilobyte = 1024;
        private static readonly long megabyte = 1024 * kilobyte;
        private static readonly long gigabyte = 1024 * megabyte;
        private static readonly long terabyte = 1024 * gigabyte;

        public static string ToByteString(long bytes)
        {
            if (bytes > terabyte)
                return (bytes / terabyte).ToString("0.00 TB");
            else if (bytes > gigabyte) return (bytes / (double)gigabyte).ToString("0.00 GB");
            else if (bytes > megabyte) return (bytes / (double)megabyte).ToString("0.00 MB");
            else if (bytes > kilobyte) return (bytes / (double)kilobyte).ToString("0.00 KB");
            else return bytes + " Bytes";
        }
    }
}
